[DebugInfo] Fix missing includes in two headers (llvm#112766)

Add include needed for DWARFContext to DwarfTransformer.h 
Add include needed for windows types like HRESULT to DIAUtils.h

Author: fsfod

llvm/include/llvm/DebugInfo/GSYM/DwarfTransformer.h

@@ -10,6 +10,7 @@
 #define LLVM_DEBUGINFO_GSYM_DWARFTRANSFORMER_H
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/DebugInfo/DWARF/DWARFContext.h"
 #include "llvm/DebugInfo/GSYM/ExtractRanges.h"
 #include "llvm/Support/Error.h"
 

llvm/include/llvm/DebugInfo/PDB/DIA/DIAUtils.h

@@ -10,6 +10,7 @@
 #define LLVM_DEBUGINFO_PDB_DIA_DIAUTILS_H
 
 #include "llvm/ADT/ArrayRef.h"
+#include "llvm/DebugInfo/PDB/DIA/DIASupport.h"
 #include "llvm/Support/ConvertUTF.h"
 
 template <typename Obj>